Speed varying and reversing mechanism.



L. da I R. BLEITZ.

SPEED VABYING AND BEVERSING MEGHANISH.

LPPLIGATIOI FILED APB'. 2. 1.910.V

Patented Aug. 16,1910.

UNITED STATES PATENT OFFICE.

LOUIS BLEITZ AND LOUIS ROLLEN BLEITZ. OF LOS ANGELES. CALIFORNIA.

Speeication of Letters Patent.

-Patented Aug. 16, 1910.

Application led April 2, 1910. Serial No. 553,142.

To 1.7iV 107mm. it may concern: Y

Be it known that Well-mits liLtzrrf/ and i Loris Homo-:N Bla-inv.. bothcitizens` ot' the United States. and residents of Los ngeles. in thecounty of Los Angeles and State of x California. have invented a new anduseful t Speed `Varying and Reversing Mechanism. of which the followingis a spccitieation.

This invention relates to that type nl' speed varying and reveisingrmechanism in which a pair of friction disks are interposed between thedrivingr sanft and the driven shaft and one of the main objects ot' thepresent invention is to produce a device of the character described inwhich the friction disks are used to build up the speed of the drivenshaft to engine speed, after which the engine shaft and the driven shaftmay be clutched together and the friction released, thereby producing' adirect drive at engine speed.

Another object of the invention' isY to so arrange the -friction disksthat the driving friction disk is'on the greatest .diameter of thedriven friction disk at loiv speed, thereby getting the greatest powerat the most desired point. i..

Another object ot' the invention is to produce a device of the characterdescribed of simple construction. compact in form which may be operatedwith great simplicity.

Other objects and advantages will appear as hereinafter described.-

Rcferring to the drawings: Figure 1 is a plan view, partly ii section.showing the transmission mechanism of an automobile embodyingl ourinvention, the parts bein; r in position for lovv speed. Fig. Q. is avievv similar to Fig. 1, showing the parts in position for direct drivefrom engine.

l designates the engine or driving shaft of anaut'oniobile and :2 thedriven shaft suitably mounted in alinement with the driving shaft 1. Thedriving;r shaft 1 is provided with a spline 3 which engages a roove inthe hub i of a friction drivingT disk 5, the disk 5 rotates with theshaft l butis movable longitudinally along the l shaft 1 by means of alever 5' or other suitl able mechanism in engagement with an annulargroove 6 formed in an extension of the hub 11.

Mounted on a shaft 't' i! bearings S at right angles to the friction.driving disk 5 is a friction driven disk 9 whieh'may he shiftedlongitudinallyby means of a suiti able` lever fl' in engagement with agrooved collar l0. The. shaft T has mounted thereon a sprocket wheel l1for driving a sprocket Wheel 12 on a counter shaft 13 through the mediumof :i sprocket chain 14.

The shaft 13 has fixed thereon a ybevel gear 15 which meshes vvit'h abevel gear 16 on the end of a sleeve 1T formed as an extension on aclutch drum 1S. The drum 1S. sleeve 1 and gear 16 are preferably formedintegral, as aboveI described`r and are loosely mounted on the shaft 2,being supported iv: a bearing 19.

Keyed to the end of the, shaft 1 and rotatable therewith is a clutchdrum Q0. The shaft` l extends partly through the drum 2O and abutsagainst the end of the shaft 2 ivhichenters Within the central bore ofthe drum 2() a sutlicient distance to center the shaft. 2 in properalinement with the shaft 1 and at the same time afford a support for theend of the shaft Splined to the shaft 2 and slidable longitudinallythereon is a clutch member 21 having a central hub member Q2 providedwith an annular groove :23 for engagement with a suitable lever 24 orother device to shift the member Q1 along` the shaft The Clutch member21 is provided with two cone friction members 25, QG adapted to engagedrums 20 and 1S respectively, :is hereinafter described.

The friction driving disk 5 is preferably made of tiber and the frictiondriven disk 9 of aluminum or other suitable. metal, but it is understoodthat ive do not limit the invention to the use of the materials as specked nor to the specific forni or size of the various parts illustrated inthe drawings.

The driving disk 5 is of smaller diameter than the driven disk 9 sothat. as illustrated in Fig. 1, with the driving disk 5 near thegreatesty diameter of the driven disk 9, the speed of the driven disk Dis slower than the driving; disk 5 which being' on the engine 'shaft 1moves at the same speed as the engine. The disk '9 on shaft- T drivessprocket 11, chain 14. sprocket 1Q. shaft 1?, and gear 15 which in turndrives j vear 1G and drum 18 and the latter beinglr loosely mounted onthe shaft 2 imparts no movement thereto until by shiftingr the lever 24the cone 2G is moved into engagement with the drum 1S. thereby drivingthe shaft at a lower speed than the shaft l, the gears 15 and 1G. andsprockets -1 and 12 being of the same ratio respeel'vlulive sizes of thesprockets the device may E be readilv adapted to meer the requirements0i speeial rases.

lo increase the speed of the driven shaft l the disk I is moved towardthe center of 'the disk J giving a gradual increase of Slfid. und b vmovin;r ille disk into the dotted position "A" whieh is nl a point.vhere ille diameier of eoniart of the disk on the fill-e of the disk i)is equal lo the diameter of the driving disk 5 the .shaft i2 will bedriven 11i llie salire speed as the shaft l. .it this point he lever 4muv he shifted. thereby llirmvinslr the eone 2G out oli engagement Willilne driver l* and the cone. .25 into enifelnent with the drum 2U whichclntehes the shaft l to the :shal'i Q, which is driven direi-tlv fromthe driving shaft l through dl'unr'll and cone the cone '25 beingsplined on the shaft .f. as hereinbefore de serilied. t this time illedrum 18 is being driven :is hereinhefore described from the disk fl.lint to relieve the friction disks the Slmfl T carrying the disk i) maybe moved Sliglitlv a sullieient distance lo break the Conlaei betweenthe disk:l i and 5 and the disk E) and parts connected therewith remzunSlalionarv until lhe disk il is moved into voulai-i ivith the disk .3.To obtain a .lower speed the reverse of die above operation 1sperformed,

it' it is desired to run speed when the driving' disk 5 reaches thedoin-d position X." the ope ation as above deserilml of eonneeting (heslmftsl and 2 di- Yivl is no1` performed hm the disk 5 ismoved nein-er:he renier ol' the disk 5) und a higher Slwvd of he shaft L attainedthrough ihe flieiion drive oi" ihe disk 7.- lo the dis t i) und theparis driven bj.' disl f), as heretofore drsurilnd.

il is lo be noted that by arranginer the dri\ ing disk und dri\en diskt*as shown, ihe disk T is at the greatest diameter of the disk J whendriving :it the lowest speed, at lhis point the. greatest power isneressary and the disk 5 driving on :i ai diameter. the minimum amount'of slippage takes4 plm-e. As the disk 5 moves toward the een- LI' ofdisk Si, the speed increases and the l'ast'er than engine diameier ofthe disk J decreases proportionately. resulting in an ideal conditionfor lrietion drive.

'lo reverse the drive the disk 9 is moved out of engagement with thedisk 5 and the latter disk is moved across the Center 0f disk 9 to theother side thereof to position .shown in doited lines B after which diskS) is moved into eontnet with the disk 5 and the paris hereinlieforedriven by disk 9 are driven in the reverse direction.

What we claim is i. In a speed varying and reversing meeh- 'nnisnn thecombination of a driving shaft, a eli-teh nuniher fixed to smid drivingshaft, a irietion drivin;` member longitudinal@Y adju :table on saiddriving:r shaft, a friet-ion driven member, :i driven shaft inlongitudinal alinement with the driving shaft, a. Clutch member looselymounted on the driven slmfLineans for driving the clutch member on thedriven shaft from siiid friction dri. en member, means for engaging saidclutch member on the driven shaft with the driven shaft, und means forengaging the clutch number on the drivinbr shnft with the driven shzzfl.Y

2.v in a speed varying and reversing meehansm, the (.-ombinution of ndriving shzift, i elzgteh member fixed to said driving shut, a fifi-liondriving member longitudinally ndju `table. on said driving shaft, afriction driven member-- a driven shaft in longitudinal ulinement withthe driving shaft, a e'luteh inmher loosely mounted on the driven shaft,in' ans for driving the clutch member on the drfven shafi from saidfrietion driven 1nembe.: means for engaginesuid eluteh member on thedriven shaft with the driven shaft, in

'lire drivin;r shaft with the driven shaft, and n; -nns Vfor disengagingthe friction members. ln testimony whereof, We have hereunto seiV ver.iands ai Los Angeles California. this 2li` `lav of Mariah 1910.

LOUIS Blilll'lZ. LUlS HLLEN BLEITZ.

In presence of- Fmxn' L. A. GRAHAM, P. 1l. Snnn'rox.

:ins for engaging the. clutch member on

